[Amps] Centurion problems....

[Bob Maser]

The internal changeover relay might be failing.  Do you see any idle 
current?

Bob W6TR
----- Original Message ----- 
From: "john" <johnmb at nc.rr.com>
To: <Amps at contesting.com>
Sent: Friday, March 09, 2007 2:35 PM
Subject: [Amps] Centurion problems....


> I've had a recent failure with my Centurion... was operating it about 600
> watts out, when I heard a "TICK" noise (sounded mechanical, not 
> electrical)
> and noted that output power dropped. Plate voltage was still normal, but 
> no
> indicated plate current).
>
> I happened to look into the grill on the top and the PA plates were red.
>
> Turned everything off, then back on a day later,  at first all was well,
> then the same thing happened again ...amp was normal, then output power
> dropped to exciter levels, and the plates began getting hot as
> before.  I've looked beneath the sockets, and nothing seems to have gotten
> too hot here (or anywhere else)
>
> Ideas?
>
> John K5MO
>
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps